Home / 88,535.10-133,061.85-77,130.30

Finding the Fourth Proportional to 88,535.10, 133,061.85 and 77,130.30

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Solution

The fourth proportional to 88,535.10, 133,061.85 and 77,130.30 is: 115,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,535.10 : 133,061.85 = 77,130.30 : x
  2. Step 2: Convert to fraction form
    88,535.10/133,061.85 = 77,130.30/x
  3. Step 3: Cross multiply
    88,535.10x = 133,061.85 × 77,130.30
  4. Step 4: Simplify right side
    88,535.10x = 10,263,100,409.06
  5. Step 5: Solve for x
    x = 10,263,100,409.06/88,535.10
  6. Step 6: Final answer
    x = 115,921.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.